package cn.school.util;

import java.io.IOException;
import java.io.InputStream;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class MyBatisUtil {
	private static SqlSessionFactory sqlSessionFactory;
	static {
		String resource = "mybatis-config.xml";
		try {
			InputStream inputStream = Resources.getResourceAsStream(resource);
			sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
		} catch (IOException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}

	}

	/**
	 * 默认关闭自动提交
	 * 
	 * @return
	 */
	public static SqlSession get() {
		return sqlSessionFactory.openSession(false);
	}

	public static void close(SqlSession s) {
		if (s != null) {
			s.commit();
			s.close();
		}
	}

	private MyBatisUtil() {

	}
}
